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Topics
Data & Maps
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Resource Library
Decennial Census of Population and Housing by Decades
Decennial Census by Decade
Although the U.S. Census Bureau carries out hundreds of surveys every year, its most well-known duty is still to conduct the decennial census. Census results have several high profile applications: they are used to reapportion seats in the House of Representatives, to realign congressional districts, and as a factor in the formulas that distribute trillions of dollars in federal funds each year. Because of the importance of this population count, procedural changes in the decennial census often reflect larger organizational shifts at the Census Bureau.
This section follows the evolution of the decennial census by detailing the events surrounding each of them. Political and technological changes, and the shifting public demand for information, have all shaped the modern census and the mission of the Census Bureau.
Census Day was August 4, 1800.
Population
| 5,308,483 | U.S. Resident Population |
| 6.1 |
Population per square mile of land area |
| 35.1 |
Percent increase of population from 1790 to 1800 |
| 16 |
Number of States |
Data tables for years 1790 through 1930 are in the library publications section for that specific year.
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About the 1800 Decennial Census
Read an overview of the 1800 Census, including information on authorizing legislation, enumeration, & more.
1800 Census Historical Facts
1800 Decennial Census Official Publications
Publications containing the official results of the 1800 Decennial Census.
1800 Census Questionnaires
In 1800, marshals took the census in existing states and territories northwest of the Ohio River and Mississippi Territory.
Page Last Revised - August 4, 2023
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